Moshe- i have no particular reply, but to contribute to your respectful response i will add this. In regard to the elderly, i have fought loudly with a few who do as you speak. Their responses were all versions of this: “i am dying of lonliness and isolation. It is no longer a maybe, i have had great decline. I would rather be among life than the living if those are my only 2 choices”
Somewhat heartbreaking. I hope that helps with your genuine question of concern. May they and we all be blessed with gezunt and arichas yamim!